MochiAds-Unity3D 3.5.7 & 4 flash bridge

While Unity3D had its flash exporter in beta, I’ve created a bridge to be able to add MochiAds to Unity3D flash games. Unfortunately this bridge didn’t work anymore since Unity released version 3.5.7 and later 4.

Besides that, MochiAds updated their API quite a bit. So it became time to re-create the bridge and make it support the latest Unity version and MochiAds features, like the new CPA ads.